Difference between ADSP-SC587BBCZ-4B and ADSP-SC589BBCZ-5B

Question

ADSP-SC587BBCZ-4B and ADSP-SC589BBCZ-5B have almost identical specifications. 
 But it's different for "processor instruction rate". i want to know that 
 And besides this, please tell me any other differences between the two ICs above.

Divya.P · Accepted Answer

Hi Inhojeon, Instruction rate is applicable of both cores. The MIPS can be calculated by below equation. MIPS = (Processor clock speed * Num Instructions executed per cycle)/(10^6). Where, the 'Num Instructions executed per cycle' can be obtained using "Performance Monitor Unit (PMU)" which calculate cycle counts for the application running in Cortex A5 core. Also, kindly refer the below ezone thread. https://ez.analog.com/dsp/software-and-development-tools/sigmastudio-for-sharc/f/q-a/547283/maximum-mips-sc589 
 Regards, Divya.P)

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Difference between ADSP-SC587BBCZ-4B and ADSP-SC589BBCZ-5B